baber/WOPTO huggingface dataset:
Patent GB-1270489-A (GB)
Title: Improvements in and relating to ignition devices for use in internal combustion engines
IPC: F02P3/08
Filed: 1970-10-16
Abstract: 1,270,489. Ignition systems. ROBERT BOSCH G.m.b.H. Oct. 16, 1970 [Oct. 18, 1969], No. 49195/70. Heading F1B. An ignition device for an internal combustion engine comprises a D.C. converter 15 for charging an ignition condenser 22, a controllable electronic discharging switch 29 for discharging the condenser through the primary winding 25 of an ignition transformer 26 and a signal generator 30 adapted to be operated in timed relation with the engine to produce a trigger pulse for controlling the discharging switch the trigger pulse being also utilized for changing over the switching state of an electrically controllable auxiliary switch 79 arranged to prevent the ignition condenser being charged by the D.C. converter for at least the deionisation time of the discharging switch. As shown the signal generator 30 comprises a conventional circuit breaker but this may be replaced by a photo-electric or magneto electric signal generator. The D.C. converter 15 may be a single ended converter or a push-pull converter.
Patent GB-1192056-A (GB)
Title: Stepping Motor with Speed Regulated Voltage Supply
IPC: H02P8/16
Filed: 1967-10-31
Abstract: 1,192,056. Control of stepping motors. GERBER SCIENTIFIC INSTRUMENT CO. 31 Oct., 1967 [25 July, 1967], No. 49411/67. Heading H2J. A stepping motor 10 is energized with sequential pulses at a variable rate from a driver 12, which may comprise transistors, the supply voltage being increased with increasing speed by a regulator 24 responsive to a speed sensor 30. The speed sensor may be driven by the motor shaft or it may respond to the frequency of the energizing pulses. To prevent zero voltage at zero speed a minimum voltage signal is provided from a potentiometer 40. The object is to economize on the switching transistors.
Patent GB-1364718-A (GB)
Title: Phonographic record cleaning devices
IPC: G11B3/58
Filed: 1972-10-26
Abstract: 1364718 Record cleaner COSMOCORD Ltd 26 Oct 1972 [26 Oct 1971] 49714/71 Heading G5R A record cleaner comprises an arm 8 mounted on a member 1 which can be secured to the playing deck of a record player adjacent the turntable, the arm carrying a record tracking brush 15 and a pivotally mounted cleaning element 19.
Patent GB-1326325-A (GB)
Title: Lever switch
IPC: H01H23/14
Filed: 1971-10-26
Abstract: 1326325 Switch handles NIHON KAIHEIKI INDUSTRIAL CO Ltd 26 Oct 1971 [30 Oct 1970] 49746/71 Heading H1N A lever 4 is releasably retained on a rocking actuator 5 by means of resilient projections 6 extending from the lever 4, which projections can be deflected past the actuator 5 to permit release of the lever 4 when the actuator occupies a neutral position between its two rest positions, but deflection of the projections is limited by the switch casing when the actuator 5 is in either of its rest positions and release of the lever 4 is thereby prevented. As shown, the lever 4 is hollow to accommodate a lamp 11 and is preferably of transparent or semi-transparent coloured synthetic resin. The projections 6 have lugs 7 to clip under the box-like frame 8 integral with side members 9 of the actuator 5, and in each rest position of the switch the lower end of a projection 6 abuts the switch casing (2, Figs. 1 and 4, not shown) to prevent release of the lever 4 even if a vigorous impulse has been applied to the lever.
Patent GB-1125935-A (GB)
Title: Production of surface active agents
Inventor: LEARY ROBERT EUGENE
IPC: C11D1/722
Filed: 1965-11-23
Abstract: 1,125,935. Secondary alcohol-alkylene oxide condensates. GENERAL ANILINE & FILM CORP. 23 Nov., 1965 [24 Nov., 1964], No. 49750/65. Heading C2C. [Also in Division C3] Non-ionic surface-active agents are prepared by passing propylene oxide into at least one C 6 -C 20  secondary alcohol at 0-125 C. in the presence of an acidic catalyst until between 1 and 4 moles of propylene oxide have reacted per mole of said alcohol, neutralizing the resultant reaction mixture, and then reacting the neutralized mixture with ethylene oxide in the presence of an alkaline catalyst at 50- 200 C. until between 1 and 150 moles of ethylene oxide have reacted per mole of secondary alcohol reacted in the first stage. Particular secondary alcohols are 2,6,8-trimethyl-4- nonanol, 2-dodecanol, 2-hexanol and 2-eicosanol. The acidic-catalyst may be of the Friedel- Crafts type or also sulphuric or phosphoric acid. The neutralizing agent and alkaline catalyst is suitably either powdered caustic soda or a 50% methanolic caustic soda solution.
Patent GB-1360687-A (GB)
Title: Photographic printing process
IPC: G03F1/54
Filed: 1972-10-24
Abstract: 1360687 Photographic process Z W FRANK 24 Oct 1972 [27 Oct 1971] 49944/71 Heading G2X [Also in Division B6] A metallic image with a visibly contrasting background comprises (a) photographically forming a two-tone positive or negative image on a film support from a continuous-tone photographic negative, the two-tone image being free from middle tones, (b) using the two-tone image to form a negative or positive etchresistant image on a layer of visibly contrasting material uniformly deposited over a base material, at least one of the materials comprising a metal or metal alloy, and (c) etching away the layer of contrasting material in the areas not protected by the etch-resistant image. The etch-resistant image may be formed using a silk-screen or by a photo-resist technique, on a layer of metal on a non-metallic base or on an aluminium sheet having a sealed porous layer of aluminium oxide having a coloured dye absorbed therein. The metallic image may be electroless-plated with a non-tarnishable metal or coated with a protective clear lacquer. A border may also be etched around the imaged background.
Patent GB-1022558-A (GB)
Title: Fluid pressure servomotor
IPC: B60T13/569
Filed: 1963-12-18
Abstract: 1,022,558. Pneumatic single-stroke apparatus. BENDIX CORPORATION. Dec. 18, 1963 [Dec. 31, 1962], No. 50022/63. Heading F1P. An actuator comprises a housing 10 divided into a mid chamber 126 and two end chambers 136, 138 by first and second walls 52, 54 secured to the housing 10 by flexible diaphragms 40, 42, a valve housing 72 secured to said second wall 54 and carrying a sleeve 74 by which the housing 72 is slidable in a sleeve 62 secured to the first wall 52 and which sleeve 62 transmit motion through a rod 142 to the workpiece, a manually actuated control valve member 82 slidably mounted in the valve housing 72 and held by diaphragm 42 so as to allow axial movement of valve member 82 relative to housing 72. Chambers 136, 138 are connected together by a tube 28 and on admitting compressed air through an inlet 30 to chamber 126 with the valve actuating rod 124 in its neutral position, said compressed air traverses an aperture 128 in valve housing 72, an aperture 130 in a rear portion 94 of valve member 82, a radial passage 132 formed between an annular poppet valve 110 and a seat 108 formed on said member 94 and a chamber 134 open to chamber 136 and hence chamber 138 thereby equalizing pressure therein. The working stroke of wall 52 is initiated by moving rod 124 against a spring 118 whereon poppet valve 110 is pushed by a spring 114 to seat at 108 and unseat at 116 a sleeve screwed to the end 122 of the control rod 124 resulting in chambers 136, 138 being connected to atmosphere through a space 106 in the valve housing 72, a passage 104 between an end plate 102 of valve member 94 and housing 72 and the hollow sleeve 74 integral with housing 72. Return of wall 52 is effected by a spring 140 on returning rod 124 to the position in which the control valve connects all three chambers together. The apparatus may be vacuum operated by connecting apertures 68 in sleeve 62 to vacuum and opening 30 to atmosphere.
Patent GB-1017620-A (GB)
Title: Cyclobutanones and cyclobutanols containing a sulphonamido substituent
Filed: 1964-12-09
Abstract: Cellulose ester resins such as cellulose acetate, cellulose acetate butyrate (a) or cellulose acetate propionate are plasticized with a compound of formula <FORM:1017620/C3/1> or <FORM:1017620/C3/2> wherein R and R1 are each a monovalent organic radical or together with the C-atom form a carbocyclic ring, R2 and R4 are each H or alkyl and R3 is alkyl, aralkyl, cycloalkyl or optionally substituted aryl.  In an example, (a) is plasticized with a compound of the first formula in which R = R1 = R4 = Methyl, R2 = H and R3 phenyl.ALSO:The invention comprises compounds of formulae <FORM:1017620/C2/1> and <FORM:1017620/C2/2> wherein R and R1 are each a monovalent organic radical or together with the C atom form a carbocyclic ring, R2 and R4 are each H or alkyl and R3 is alkyl, aralkyl, cycloalkyl or optionally substituted aryl.  The cyclobutanones are prepared by reacting together the appropriate ketene and N-vinylsulphonamide; they may be reduced to the corresponding cyclobutanols.  The cyclobutanols can be converted to surfactants by sulphation and conversion to the sodium salt.
Patent GB-1523360-A (GB)
Title: Winding apparatus for winding on textile yarns
IPC: B65H54/72
Filed: 1975-12-08
Abstract: 1523360 Winding yarns RHONE-POULENC-TEXTILE 8 Dec 1975 [9 Dec 1974] 50226/75 Heading D1J  A yarn winding apparatus has two winding- on rollers 2, 3 with traversing guides 4 and 5 respectively each provided with yarn guides arranged for reciprocation in a vertical plane tangential to its winding-on roller, the upper roller 2 having two bobbin holders 6, 7 and the lower roller 3 having three bobbin holders 8, 9, 10 arranged around the roller peripheries to provide for simultaneous winding of four bobbins with one in reserve which receives yarn when one of the four requires to be changed. Two guides 11 and 12 are located near the vertical line which passes through guide 5 and two guides 13 and 14 are similarly positioned with respect to guide 4. A deflecting guide 15 deflects yarn F3 through an angle α of between 0‹ and 15‹. A change-over device as described in Specification 1504992 may be used to effect automatic change-over or change-over may be effected manually.
Patent GB-1182390-A (GB)
Title: Improvements in and relating to Clutch Assemblies
Inventor: PEARCE RICHARD DOUGLAS
IPC: B30B15/12
Filed: 1968-10-23
Abstract: 1,182,390. Controlling positive clutches. KEETON SONS & CO. Ltd. 23 Oct., 1968, No. 50318/68. Headings F2C and F2L. A positive clutch has a facially toothed driven part 15 urged axially into engagement with a facially toothed driving part 14 by springs 96, and is disengaged by axial movement of a control rod 84, which extends through a hollow driven shaft 10, upon stationing of a cam 43 which is rotatably mounted on the shaft 10 but axially fixed relative thereto. Rollers 45 ride out of slots 44 in the cam to shift the rod to disengage the clutch when the cam is stationed by abutment of a stop 110 on the cam with an end 111 of a bell-crank lever 111A which is pivoted at 114. A second bell-crank lever 117 is pivotally mounted on an eccentric which is adjustable about the axis 114, the lever 117 being controlled by a treadle-operated rod 119 and having an arm 116 engageable at 125 with an arm of a lever 121 which is pivoted on the bell-crank lever 111A and biased anti-clockwise by a spring 131 which also urges the bell-crank lever 111A clockwise. When the arm 116 is engaged with the lever 121, momentary depression of the treadle pivots both bell-crank levers anti-clockwise, releasing the stop 110 from the abutment 111 and permitting the clutch to engage. Rotation of the output shaft 10 and consequent rotation of the cam 43 ensue, and after a partial rotation the stop 110 engages a roller 122 carried by the lever 121 and pivots the lever clockwise, releasing it fromthe arm 116. The spring 131 then returns the bell crank lever to its initial position, and when the stop 110 has passed beyond the roller 122, the lever 121 is returned to its initial position in engagement with the arm 116, so that the cam is stationed by the abutment 111 after one revolution to disengage the clutch. The one revolution arrangement may be disabled to permit indefinite clutch engagement by adjustment of the eccentric mounting of the bell-crank lever 117 by way of a rod 129 which is connected to an arm 126 of this eccentric. Such adjustment shifts the arm 116 downwardly and pivots the lever 121 clockwise so that the roller 122 is held clear of the stop 110.
Patent GB-1181885-A (GB)
Title: A Collapsible Charcoal Grill
Inventor: GMEINER HANS
IPC: A47J37/07
Filed: 1967-11-09
Abstract: 1,181,885. Portable grilling device. H. GMEINER. 9 Nov., 1967 [10 Nov., 1966], No. 51133/67. Heading A4D. A collapsible portable grilling device comprises a holder 18 for solid-fuel, such as charcoal, above which are detachably mounted grill bars 28 adjustable for height with the control 33, and below which is an air space communicating with the exterior via openings, the dimensions of which can be varied with the mechanism 27 to control the air flow to the fire. The lid 12 may be inclined forward and supported by side-members, which act as windshields, and also enable a spit to be fitted. A detachable drip tray 36 is illustrated. For transportation, the legs 44 are folded underneath the housing 11, the grill bars 28 are lowered, and the lid 12 is folded forward so that the handle 15 can be pushed through the slit 14.
Patent GB-1512919-A (GB)
Title: Process for isolating triarylmethane dyestuffs
IPC: C09B11/00
Filed: 1976-12-08
Abstract: 1512919 Isolating triphenylmethane dyestuffs BAYER AG 8 Dec 1976 [11 Dec 1975] 51211/76 Heading C4P Dyestuffs of the general formula wherein R 1 -R 12  are H, halogen, alkyl, halogenoalkyl, alkoxyl, alkylmercapto, alkylsulphonyl, alkoxysulphonyl, alkylcarbonyl, alkoxycarbonyl, nitro or cyano, X and Y are -N(R 13 )R 14  where R 13  and R 14  are H, alkyl, halogenoalkyl, cyanoalkyl, cycloalkyl, aryl or aralkyl, and wherein X and R 2 , Y and R 10 , R 1  and R 2 , R 5  and R 6  and R 9  and R 10  may form a 5- or 6-membered ring and A<SP>(-)</SP> is an anion, are isolated by dissolving the crude dyestuff in an aqueous acid, adding an organic solvent which has a solubility in water of up to 5% and then isolating the dyestuff. The process preferably takes place at 20-100C at pH 0À1-7 and a dyestuff concentration of 5-250 g/l. 5-100 per cent by volume of organic solvent may be added and the organic solvents used include saturated or unsaturated aliphatic hydrocarbons, cycloaliphatic, aromatic or condensed aromatic-cycloaliphatic hydrocarbons, saturated or unsaturated aliphatic or aromatic halogenated hydrocarbons, aliphatic alcohols and aliphatic, aromatic or aliphatic-aromatic ethers. Preferred examples include 1,2-dichloroethane, carbon tetrachloride, chlorobenzene or odichlorobenzene. The dyes are used on polyacrylonitrile and acid modified polyesters.
Patent GB-995072-A (GB)
Title: Speed governor
Inventor: JUBB ALBERT
IPC: F02C9/16
Filed: 1963-12-31
Abstract: 995,072. Gas turbine plant. ROLLS-ROYCE Ltd. Dec. 31, 1963, No. 51455/63. Heading F1G. [Also in Division G3] A speed governor comprises a rotatable member 50 formed with a chamber 51 having an opening 53 to a chamber 47, which opening is covered by a gauze 54. A plurality of balls 55 are provided in the chamber 51 so that the opening through the gauze is controlled by the balls in dependence on the speed of rotation of the member. The chamber 47 is connected to high pressure and the chamber 51 to low pressure so that the pressure in chamber 47 is proportioned to the speed. The pressure in chamber 47 acts on a diaphragm 72 to actuate a valve 76 controlling the leakage from a conduit 44 to the low pressure source. The conduit 44 is connected to one side of a piston 35 which controls the angle of the swash-plate of a pump 52 which supplies fuel to a gas turbine engine. The opposite side of the piston is subjected to the pump outlet pressure.
Patent GB-1367568-A (GB)
Title: Attache case
IPC: B42F7/14
Filed: 1972-11-09
Abstract: 1367568 Attache case H E C HURLY 9 Nov 1972 [24 Nov 1971] 51645/72 Heading B8P [Also in Division B6] An attache case in which document-receiving sleeves 32 are pivotally mounted includes a plurality of sleeve mounting rods 30 pivoted in spaced brackets 26 secured to a hinged fourth side 17 of a tray 10 which has three fixed sides 14-16 and is closable by a top closure flap 24 hinged to the fourth side 17. The case includes a second closure flap 34 which can overlie and be latched to the top closure flap 24. The side walls 14-16 are wooden, the tray base comprises fibre board sandwiched between a pair of plastic sheets, and the fourth side 17, the top closure flap 24 and the second closure flap 34 are of plastic material which is integral with the plastic sheets of the base.
Patent GB-1346020-A (GB)
Title: Welding apparatus
IPC: B23K9/20
Filed: 1972-11-10
Abstract: 1346020 Welding by pressure TRW Inc 10 Nov 1972 [12 Nov 1971] 52158/72 Heading B3R [Also in Division H2] Apparatus for welding a stud to a workpiece comprises a welding tool 10 having a chuck 18 for holding the stud 22, means for retracting the chuck and means for plunging the chuck towards a workpiece, means for establishing a sustaining arc between the stud and the workpiece and means for subsequently establishing a main welding arc between the stud and the workpiece while continuing the sustaining arc, and means for controlling the intensity of said main welding arc by phase delay control of the welding arc current. In a control circuit for the stud welding tool three sources 56, 53 and 66 of alternating current are provided, the first 56 being connected to a bridge rectifier system 60, 62, 64, 66 which on firing of silicon controlled rectifiers 64, 66 supplies the sustaining arc, the second 53, being connected to a bridge rectifier system 48, 50, 52, 54 which, on firing of silicon controlled rectifiers 52, 54 supplies the main welding arc, while the third, 66, is connected to a bridge rectifier system 70 and supplies the circuits for initiation, timing, phase delay control of welding arc current and energizes the coil 80 for retracting the stud. A manually closed push button switch 86 initiates the welding cycle and allows capacitor 76 to discharge, firing the SCR 82 which in turn energizes the coil 80 for retracting the workpiece and causes a reed relay 100 to close. Closure of the relay 100 also closes contacts 100-3, 100-2 and 100-1. Contacts 100-3 supply D.C. to fire the SCRs 64, 66 thereby establishing the sustaining arc; contacts 100-1 supply pulsating D.C. to a synchronized pulse generating circuit including unijunction transistor 120 which after suitable phase delay determined by a variable resistor 118 fires, and in turn fires the SCRs 52, 54 in the main welding arc supply circuit; contacts 100-2 supply filtered D.C. to a, timing circuit which includes Zener diode 136, programmable unijunction transistor 106 and   variable resistor 102. After a delay determined by the parameters of the timing circuit the unijunction transistor 106 fires placing SCR 142 in conductive state which allows capacitor 144 to discharge across the gun SCR 82 reverse biasing it and thereby turning it off. Current is thus removed from the coil 80 allowing the return or plunge spring 47 in the tool to plunge the stud 22 into the pool of molten metal produced by the welding arc. The reed relay 100 is also de-energized when the SCR 82 is turned off and after a short delay (due to a capacitor 98) sufficient to allow the stud to reach the pool of molten metal while current is still flowing, drops out thereby opening contacts 100-1, 100-2, and 100-3 to terminate the sustaining and welding arc currents. A safety shut-down circuit including a time delay circuit breaker 150 is included, placed across the outputs, so that if the control circuit does not time out the breaker will trip.
Patent GB-1163132-A (GB)
Title: Improvements in or relating to Respiratory Apparatus.
Inventor: DRAGER OTTO HEINRICH
IPC: A61M16/00
Filed: 1966-11-22
Abstract: 1,163,132. Respiratory appliances. O. H. DRAGER. 22 Nov., 1966 [22 Nov., 1965], No. 52326/66. Heading A5T. Respiratory apparatus comprises an injector with nozzle, a gas supply duct leading to the upstream side of the nobble for supplying thereto nutrient gas under pressure, a by-pass duct leading from the gas supply duct to the downstream side of the nozzle and thus bypassing the nozzle, a first closure device in the by-pass duct and closable to prevent flow of the nutrient gas from the supply duct to said downstream side by way of the by-pass duct, a branch duct leading towards the ambient atmosphere from the by-pass duct at a location intermediate the first closure device and said downstream side, and a second closure device in the branch duct closable to prevent flow of the ambient air to the by-pass duct by way of the branch duct. As illustrated, gas (for example oxygen) is supplied from container 1 via conduit 2, pressure regulator valve 3, conduit 4, fork 5 and conduit 6 to pressure nozzle 7 of the injector. Air is inspired into the mixing nozzle 12 of the injector via aperture 13, which preferably has an opening of adjustable cross-section and is adapted to be closed by a valve disc, for example constructed as a hand wheel 14, associated with a screwthreaded spindle 15. On closure of the air inspiration aperture, spring-loaded closure disc 10 is simultaneously lifted from its seat, thereby opening aperture 11 to allow gas to flow to the mixing nozzle of the injector via conduit 8 and throttling element 9, which is situated in the by-pass,gas flow path between the injector and the air inspiration aperture and which is preferably so dimensioned that the quantity of gas flowing therethrough at operating pressure, corresponds to the quantity of air which would be inspired through the air inspiration aperture by the injector at the same operating pressure. That part of the apparatus on the downstream side of the nozzle 12 is as shown in Fig. 2 of Specification 855,147.
Patent GB-1389450-A (GB)
Title: Shower assemblies
IPC: E03C1/06
Filed: 1971-11-11
Abstract: 1389450 Shower assemblies WALKER CROSWELLER & CO Ltd 8 Nov 1972 [11 Nov 1971] 52334/71 Heading A4N A shower assembly comprises a spray head 1 mounted on a hollow member 2 provided with a passageway 10 for fluid, a bracket member 5 adapted to be mounted on a wall etc., and a connection member 4 including a spigot 22 extending from a transverse partition 16 and co-operating with a recess in the bracket member 5, a recess for the introduction of one end of a supply pipe 7, and an integral or separable threaded spigot member 3. The pipe 7 is arranged transverse to the axis of the member 4 vertically above or below it and includes a constriction 20 located adjacent an inlet port 18 of the member 4. The bracket is mounted on the wall 6 by a hidden screw 28 and is provided with ribs (29), Fig.8 (not shown) which engage a circumferential groove (23) Fig.4 (not shown) and axial slots (24) in the manner of a bayonet fitting for removal, the members being a snap fit on assembly.